Length-weight relationship and stock assessment of tuna fish (Euthynnus affinis) in East Halmahera waters

Akuatikisle: Jurnal Akuakultur, Pesisir dan Pulau-Pulau Kecil Pub Date : 2018-11-22 DOI:10.29239/j.akuatikisle.2.2.31-39

Hamid Taher, Syahnul Sardi Titaheluw, Aisyah Bafagih

{"title":"Length-weight relationship and stock assessment of tuna fish (Euthynnus affinis) in East Halmahera waters","authors":"Hamid Taher, Syahnul Sardi Titaheluw, Aisyah Bafagih","doi":"10.29239/j.akuatikisle.2.2.31-39","DOIUrl":null,"url":null,"abstract":"The study was conducted in December 2016 to February 2017 in East Halmahera waters with the aim to examine the relationship between the length of weight and potential and the level of utilization of tuna. The results showed that the long frequency distribution of tuna was ranging from 10.0-28.2 cm, with a maximum length value of 29.93 cm, a growth coefficient of 0.74 per month and a measure of fish worth catching for spawning. The relationship between the weight of tuna in East Halmahera waters is W=0.0078L3.2982, where the length of tuna is greater than this weight increase due to environmental conditions and oceanographic parameters that affect the growth of tuna. The results of the MSY analysis or the sustainable resource potential of tuna in East Halmahera waters using the Fox method, found that the MSY value or sustainable potential of tuna was 4,176.54, with a maximum effort level of 8,047 Trips. This utilization rate is still low from the value of MSY and continues to decline this is due to the low value of fishing efforts.","PeriodicalId":7395,"journal":{"name":"Akuatikisle: Jurnal Akuakultur, Pesisir dan Pulau-Pulau Kecil","volume":"16 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2018-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Akuatikisle: Jurnal Akuakultur, Pesisir dan Pulau-Pulau Kecil","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.29239/j.akuatikisle.2.2.31-39","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 2

Abstract

The study was conducted in December 2016 to February 2017 in East Halmahera waters with the aim to examine the relationship between the length of weight and potential and the level of utilization of tuna. The results showed that the long frequency distribution of tuna was ranging from 10.0-28.2 cm, with a maximum length value of 29.93 cm, a growth coefficient of 0.74 per month and a measure of fish worth catching for spawning. The relationship between the weight of tuna in East Halmahera waters is W=0.0078L3.2982, where the length of tuna is greater than this weight increase due to environmental conditions and oceanographic parameters that affect the growth of tuna. The results of the MSY analysis or the sustainable resource potential of tuna in East Halmahera waters using the Fox method, found that the MSY value or sustainable potential of tuna was 4,176.54, with a maximum effort level of 8,047 Trips. This utilization rate is still low from the value of MSY and continues to decline this is due to the low value of fishing efforts.

查看原文本刊更多论文

东哈马黑拉水域金枪鱼(Euthynnus affinis)长重关系及种群评价

该研究于2016年12月至2017年2月在东哈马黑拉水域进行，目的是研究金枪鱼的重量长度和潜力与利用水平之间的关系。结果表明，金枪鱼的长频次分布范围为10.0 ~ 28.2 cm，最大长度值为29.93 cm，生长系数为0.74 /月，是值得捕捞产卵的鱼类。在East Halmahera水域，金枪鱼的体重之间的关系为W=0.0078L3.2982，由于环境条件和海洋学参数影响金枪鱼的生长，金枪鱼的长度大于体重的增加。采用Fox方法对东Halmahera海域金枪鱼可持续资源潜力进行MSY分析，结果发现金枪鱼可持续资源潜力的MSY值为4176.54，最大努力水平为8047 Trips。这一利用率仍然低于最高可持续产量的价值，并且由于捕捞努力量的价值较低而继续下降。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Akuatikisle: Jurnal Akuakultur, Pesisir dan Pulau-Pulau Kecil

自引率

0.00%

发文量